Two men are sitting at a bar in a highrise. The first man says to the other ""You should get the barman's home brew. It makes you fly!"" The second man sceptically replies ""If it makes you fly, then prove it."" So the first man takes a swig of his beer, jumps out the window, and flies a few circles around the building. When he gets back, the second man is amazed and immediately orders one of the house brews. After gulping it down, he jumps out of the window and falls to his death. Upon seeing this, the barman turns to the first man and says, ""You're kind of a jerk when you're drunk, Superman.""